ESP32-C3 OLED Development Board, Ceramic Antenna, ESP32 Development Board, wifi, Bluetooth, 0.42 inch screen

ESP32-C3 OLED development board with 0.42 inch OLED module is a compact Wi-Fi and Bluetooth LE microcontroller board based on the RISC-V architecture. It features the powerful ESP32-C3 SoC, integrated USB for programming, and a 0.42-inch monochrome OLED display for real-time data or status feedback. Ideal for IoT, wireless sensor nodes, and portable embedded projects.

Key Features:

ESP32-C3 SoC: 32-bit single-core RISC-V processor with Wi-Fi and Bluetooth 5 (LE).

Integrated OLED Display: 0.42-inch monochrome screen for debugging, data display, or UI.

Onboard USB Port: Direct programming and power via USB-C or micro-USB port.

Low Power Consumption: Ideal for battery-powered embedded applications.

GPIO and I2C Support: Multiple I/O for sensors, buttons, relays, and displays.

Technical Specifications:

Processor: 32-bit RISC-V, up to 160MHz

Flash Memory: 4MB (typical)

SRAM: 400KB

Wireless: Wi-Fi 802.11 b/g/n + Bluetooth 5.0 LE

OLED Display: 0.42-inch, 72×40 resolution, I2C-based

Operating Voltage: 3.3V logic (powered via 5V USB)

GPIO: Up to 15 configurable digital pins

USB Interface: USB-C or Micro-USB, onboard USB-to-UART

Mechanical Specifications:

PCB Size: Approx. 25mm x 50mm

Mounting Holes: Often includes 2 or 4 M2 holes for easy enclosure fitting

Display Placement: Soldered or surface-mounted OLED module on top

Mounting Options:

Header Pin Compatible: Breadboard friendly with 2.54mm pin spacing

SMD-Compatible: Can be surface-mounted in compact enclosures

Schematic Diagram, Connection, Wiring and Pinout:

Pinout: GPIOs labeled on PCB, supports ADC, PWM, I2C, SPI, and UART

OLED: Connected via I2C (SDA and SCL pins)

Power: 5V input via USB, 3.3V regulated onboard

Boot/Reset: Buttons included for flashing and resetting the chip

Applications:

Wireless Sensor Networks: Monitor and transmit sensor data with onboard display.

IoT Projects: Real-time control and monitoring using Wi-Fi or BLE.

Wearables and Portables: Small form-factor enables integration into compact devices.

Development and Testing: Onboard display helps debug embedded programs.

Home Automation: Control relays, lights, or read environmental sensors.

Equivalent Models:

ESP32-C3 Mini: Similar specs without OLED screen

Lolin C3 Mini: Compact ESP32-C3 board with USB and basic I/O

Seeed XIAO ESP32-C3: Ultra-small form factor with RISC-V core

Package Includes:

1 x ESP32-C3 OLED development board with 0.42 inch OLED display

Note: Product Images are shown for illustrative purposes only and may differ from the actual product.